root recovery

Tree Age and Trunk-Injection Effectiveness

Daniel CooperHLB Management, OTC Expert

Sponsored Content In this special series, Tom Johnson, owner of TJ BioTech, tackles questions about optimizing trunk-injection applications to treat HLB. Question: It is known that ReMedium TI® is working to fight HLB in young trees. Are ReMedium TI® injections proving to be effective in older citrus trees? Answer: ReMedium TI® is indeed effective in older citrus trees. The caution …

diverse

Big Year Expected for Diverse Georgia Citrus Crop

Daniel CooperGeorgia, Production

Georgia’s citrus industry is growing and so are the diverse varieties producers are planting every year. Jake Price, University of Georgia citrus agent, said at the Citrus Grower’s Summer Update meeting last week in Valdosta that there were 4,400 citrus acres planted in South Georgia. At approximately 145 trees per acre, this equates to about 638,000 trees. What started out …

quality

Nutrients for Improving Fruit Growth and Quality

Daniel CooperNutrition, Tip of the Week

By Tripti Vashisth, Jeff Brecht, Yu Wang and Faisal Shahzad In the last decade, fruit quality and size has become a major issue. Moreover, fruit peel color is another challenge to overcome for citrus growers who intend to sell for fresh fruit consumption. Many nutrients are known to improve fruit growth and quality in citrus trees. For example, potassium increases …

frequent irrigation

Frequent Irrigation Benefits HLB-Infected Sweet Orange Trees

Daniel CooperHLB Management, Irrigation, Research

By Tripti Vashisth and Mary Sutton Citrus trees affected by huanglongbing (HLB) show significant root dieback. This dieback results in smaller root systems than would be seen in healthy citrus trees. These small root systems are limited in their uptake capacity. In other words, if an HLB-affected tree is given the same amount of water as a healthy tree, the …

centennial growers

Seeking Centennial Growers and Production Costs

Daniel CooperFlorida, Production

Florida Citrus Mutual (FCM) is seeking information about centennial growers — families that have been in the citrus business 100 years or more — so it can honor them. The statewide grower organization is also asking growers to participate in surveys that will determine the cost of production of Florida fresh grapefruit and processed oranges. CENTENNIAL GROWERS FCM wants to …

commercial

HLB and Psyllids in Georgia Commercial Citrus

Daniel CooperGeorgia, Psyllids

One of Georgia citrus growers’ worst fears is slowly becoming a reality. Citrus greening, also known as huanglongbing (HLB), was observed in a Georgia commercial citrus grove for the first time in 2023. This is alarming news for the industry, says Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist. “We knew HLB was here in residential …

tree age

Tree Age and Yields: Implications for Trunk Injection

Daniel CooperEconomics, HLB Management

By Ariel Singerman This article examines the impact of HLB and other factors on yield by tree age group in Florida using U.S. Department of Agriculture statewide average data from 1994 to 2021. To focus on the impact of HLB and other relevant lasting factors, seasons in which there were hurricanes or freezes are excluded. YIELD REDUCTIONS Figures 1 and …

Syngenta

Syngenta Seeks Citrus Interns for Summer

Daniel CooperIndustry News Release

Syngenta Crop Protection has announced it is accepting applications for its summer 2025 citrus internship program. These are paid internships offering hands-on experience in the agriculture industry. Applications can be made online. Applicants should complete the survey and upload their resumes here. The deadline for applying is Nov. 8, 2024.  ABOUT THE INTERNSHIPS Interns are assigned to mentors and territories …

Perricone

Perricone Farms Acquires Natalie’s Orchid Island Juice Company

Daniel CooperIndustry News Release

Perricone Farms, a craft juice company headquartered in California, announced its acquisition of Natalie’s Orchid Island Juice Company, based in Fort Pierce, Florida. Perricone Farms stated that the merger “strengthens both brands and enhances the ability to serve customers with excellence in quality and customer service coast-to-coast.” It added that the combined company will be able to take advantage of …

new grove

Factors to Consider When Planting a New Grove

Daniel CooperCitrus Expo, planting

Growers have numerous things to think about when planting a new grove. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus genetic improvement specialist John Chater discussed this topic during a recent Citrus & Specialty Crop Expo presentation. Following are highlights from his talk on establishing new varieties in a new citrus grove. PESTS AND DISEASES Soilborne pests …

greasy spot

Symptoms and Management of Brown Rot and Greasy Spot

Daniel CooperDiseases

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) presenters on Aug. 30 discussed symptoms and management of the fungal citrus diseases brown rot and greasy spot. Plant pathologist and associate professor Megan Dewdney, the featured speaker, focused on management. Multi-county citrus Extension agent Mongi Zekri, who hosted Dewdney’s talk, described disease symptoms. BROWN ROT Brown rot is usually …

preharvest fruit drop

The Best Defense for Mitigating Preharvest Fruit Drop

Daniel CooperFruit Drop, PGRs, Tip of the Week

By Tripti Vashisth Over the past decade, HLB-associated fruit drop has become a significant problem in Florida groves. Many growers opt to harvest the fruit before the peak fruit drop begins. However, the downside to this strategy is that the fruit does not get enough time for optimal Brix accumulation. Plant growth regulators, when applied at the right time, can …

nutrient management

Citrus Nutrient Management Recommendations Continue to Evolve

Daniel CooperBMPs, Florida, Nutrition

When HLB arrived in Florida, it changed the world for citrus growers, and a lot of other things had to change with it. One of the biggest changes has been how growers manage their fertilizer programs. The nutrient recommendations that had been developed by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) before HLB became outdated because …

Brazil’s

Heat and HLB Hurting Brazil’s Production

Daniel CooperBrazil, Production

Brazil’s citrus crop is suffering this season, according to Franklin Behlau, a senior researcher for Fundecitrus. That was the focus of a recent presentation he provided at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred. “Things have changed in Brazil this season,” Behlau said. “We are a little behind …

early-season

Seeking Early-Season Sweet Oranges

Daniel CooperAll In For Citrus Podcast, Varieties

HLB has reduced citrus production across the board, but early varieties like Hamlin have taken an even bigger hit. Hamlin has been plagued by the disease and fruit drop, which has left a void in the juice-processing segment in the early season. Growers who have been replanting have mostly relied on later-season varieties like Valencia because it seems to be …

future

The Future of Citrus

Daniel CooperBreeding, HLB Management, Research

By Rob Gilbert, ragilber@ufl.edu Last month I went to Lake Alfred for a look at the future of the citrus industry. You’ll like what I saw. BREEDING EFFORTS What I saw first was a lab focused on finding an HLB-tolerant tree that has doubled in size since my last visit to the Citrus Research and Education Center. Nian Wang can …

presentations

Citrus & Specialty Crop Expo Presentations Available Online

Daniel CooperCitrus Expo, Tip of the Week

By Michael E. Rogers The 2024 Citrus & Specialty Crop Expo, hosted by AgNet Media, took place Aug. 21–22 at the Florida State Fairgrounds in Tampa. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus educational sessions were held during the afternoon of the first day of the event and in the morning on the second day. …

assistance

H-2A Workers Blocked From Joining Unions in 17 States

Daniel CooperLabor, Legal

A federal judge in Georgia on Aug. 26 blocked a federal rule allowing migrant farmworkers to join unions in 17 states. The ruling prevents the U.S. Department of Labor (DOL) from enforcing the new rule. The rule would have prevented agricultural employers from retaliating against migrant workers with H-2A temporary work visas for joining labor unions and organizing against wage …

Citrus & Specialty Crop Expo

Citrus & Specialty Crop Expo: Agriculture Matters

Daniel CooperCitrus Expo

More than 350,000 acres of citrus and specialty crops were represented at this year’s Citrus & Specialty Crop Expo in Tampa, Florida, on Aug. 21–22. These acres represented growers from central and southern Florida, as well as producers from the cold-hardy citrus region of North Florida, South Georgia and South Alabama. More than 150 exhibitors and sponsors covered the trade …

Specialty Crop Block Grant

Specialty Crop Block Grant Program Funds Citrus Projects

Daniel CooperHLB Management, nursery, Research

The U.S. Department of Agriculture Agricultural Marketing Service (USDA AMS) Specialty Crop Block Grant Program awarded 54 grants and 524 sub-award projects totaling $72.9 million for fiscal year 2024. The following citrus projects were included in the funding. CALIFORNIA The California Department of Food and Agriculture (CDFA) received a grant for $448,742 for mitigating huanglongbing (HLB) in citrus using naturally-derived …